CAJ | 학술논문

建立了分散固相萃取-气相色谱-串联质谱法检测蒜粉中13种有机磷农药残留的方法。样品经0.1%乙酸-乙腈提取，C18净化粉净化后，氮气吹干，用1.0mL乙酸乙酯定容，上机检测。采用TR-5MS（30m×0.25mm×25μm）色谱柱分离，在选择反应监测模式下检测，外标法定量。结果表明：13种有机磷农药在浓度0.02-1.0mg/L范围内线性关系良好，相关系数r=0.9910-0.9978，方法检测限为0.001-0.01mg/kg，定量限为0.005-0.02mg/kg。在不同添加水平下，其平均回收率为70-120%，变异系数为3.4-14.3%。
건립료분산고상췌취-기상색보-천련질보법검측산분중13충유궤린농약잔류적방법。양품경0.1%을산-을정제취，C18정화분정화후，담기취간，용1.0mL을산을지정용，상궤검측。채용TR-5MS（30m×0.25mm×25μm）색보주분리，재선택반응감측모식하검측，외표법정량。결과표명：13충유궤린농약재농도0.02-1.0mg/L범위내선성관계량호，상관계수r=0.9910-0.9978，방법검측한위0.001-0.01mg/kg，정량한위0.005-0.02mg/kg。재불동첨가수평하，기평균회수솔위70-120%，변이계수위3.4-14.3%。
A method was established to determine the 13 organophosphorus pesticide residues in garlic powder by dispersive solid-phase extraction and gas chromatography-tandem mass spectrometry method. The sample was ex-tracted by 0.1% acetic acid-acetonitrile. After being cleaned by C18 powder, and then dried by the nitrogen flow, the sample was dissolved in 1.0mL ethyl acetate and performed on TR-5MS (30m×0.25mm×25μm) column. The analysis was carried out in the select reaction monitoring mode and external standard method was used for quantifi-cation. The calibration curve of the 13 organophosphorus pesticides was good linear from 0.02 to 1.0mg/L with the correlation coefficient r=0.9910-0.9978, the detection limits of this method were 0.001~0.01mg/kg and the quantita-tive limits were 0.005-0.02mg/kg. In different concentrations, the average recoveries of this method were 70-120%and the variability coefficient were 3.4-14.3%.